WO2013084716A1 - 混合ガス製造方法及びガス混合装置 - Google Patents
混合ガス製造方法及びガス混合装置 Download PDFInfo
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- WO2013084716A1 WO2013084716A1 PCT/JP2012/080088 JP2012080088W WO2013084716A1 WO 2013084716 A1 WO2013084716 A1 WO 2013084716A1 JP 2012080088 W JP2012080088 W JP 2012080088W WO 2013084716 A1 WO2013084716 A1 WO 2013084716A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/10—Mixing gases with gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/10—Mixing gases with gases
- B01F23/19—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means
- B01F23/191—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means characterised by the construction of the controlling means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/82—Forming a predetermined ratio of the substances to be mixed by adding a material to be mixed to a mixture in response to a detected feature, e.g. density, radioactivity, consumed power or colour
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D11/00—Control of flow ratio
- G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
- G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
- G05D11/131—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components
Definitions
- the present invention relates to a mixed gas manufacturing method and a gas mixing apparatus for generating a mixed gas by adding an additive gas to a main gas.
- the pressure of each gas is set and adjusted by a pressure regulator provided for each gas.
- the pressure of the gas passing through each pressure regulator varies.
- the pressure of each gas set in each pressure regulator fluctuates with respect to the set pressure, and configures the mixed gas
- the ratio of each gas to perform may deviate from the set value.
- each gas by using a differential pressure adjustment valve, a pressure balance circuit, etc., and the adjustment pressure of one gas is controlled using the adjustment pressure of one gas as a pilot pressure using the pilot pressure regulator.
- a technique is disclosed in which each gas has the same pressure by making the pressure of the other gas the same as the pressure of the other gas (see, for example, Patent Document 1).
- the present invention has been made in consideration of such circumstances, and when the main gas and the additive gas are mixed to form a mixed gas, the mixed gas in which the main gas and the additive gas are mixed at a predetermined ratio. It is an object of the present invention to provide a mixed gas production method and a gas mixing apparatus that can stably generate the gas.
- a first aspect of the present invention is a gas mixing apparatus that generates a mixed gas by mixing a main gas and an additive gas, and includes a main gas flow path to which the main gas is supplied, and an additive to which the additive gas is supplied.
- a gas flow passage, and a mixing unit that connects the main gas flow passage and the additive gas flow passage, mixes the main gas and the additive gas, and discharges the generated mixed gas to a mixed gas discharge port;
- the main gas flow passage includes a pilot-type pressure adjusting unit that adjusts the pressure of the main gas in the main gas flow passage based on the pressure of the additive gas in the additive gas flow passage;
- Main gas flow rate detecting means for detecting the flow rate of the main gas whose pressure is adjusted.
- the additive gas flow passage is provided with additive gas flow rate adjusting means for adjusting the flow rate of the additive gas flowing from the additive gas flow passage to the mixing section. Further, the flow rate control unit controls the flow rate of the additive gas to be circulated through the mixing unit based on the flow rate of the main gas detected by the main gas flow rate detection unit.
- a second aspect of the present invention is a mixed gas production method for producing a mixed gas by mixing a main gas and an additive gas, and supplying the main gas to the main gas flow passage and adding the additive gas to the additive gas flow passage And adjusting the pressure of the main gas flowing through the main gas flow passage based on the pressure of the additive gas flowing through the additive gas flow passage, and adjusting the pressure of the main gas adjusted in the main gas flow passage. Based on the flow rate, the flow rate of the additive gas flowing from the additive gas flow passage to the mixing unit is adjusted, and the main gas and the additive gas are mixed at a predetermined ratio in the mixing unit.
- the main gas and the additive gas having a predetermined flow rate are mixed even if the amount of the mixed gas used is increased or decreased. As a result, it is possible to stably produce a mixed gas in which the main gas and the additive gas are in a predetermined ratio.
- a gas having a high flow rate is a main gas
- a gas having a low flow rate is an additive gas. That is, the main gas is more than 50% and less than 100% and the additive gas is more than zero% and less than 50% with respect to the amount of mixed gas produced.
- the mixed gas in which the main gas and the additive gas are mixed at a predetermined ratio can be stably manufactured. Can do. Moreover, the equipment configuration in the mixed gas production is simple and can be easily operated.
- FIG. 1 is a diagram showing an outline of a gas mixing apparatus according to an embodiment of the present invention.
- the gas mixing device 1 includes a main gas flow path 10, an additive gas flow path 20, a mixed gas flow path 30, a mixing unit 32, and a flow rate control unit 40.
- the main gas G1 supplied to the main gas flow passage 10 and the additive gas G2 supplied to the additive gas flow passage 20 are mixed by the mixing unit 32 to generate a mixed gas G3.
- the mixed gas G3 is discharged from the mixed gas discharge port 33 through the mixed gas flow passage 30.
- the main gas flow passage 10 includes a main gas pipe 11, a main gas supply port 13, a pressure gauge 16, a filter 17, a check valve 18, a pilot pressure adjustment valve (pilot pressure adjustment unit) 14, A mass flow meter (main gas flow rate detection means) 15.
- the main gas supply port 13, the pressure gauge 16, the filter 17, the check valve 18, the pilot pressure adjustment valve 14, and the mass flow meter 15 are arranged in this order from the upstream side of the main pipe 11.
- the additive gas flow passage 20 includes an additive gas pipe 21, an additive gas supply port 23, a pressure gauge 26, a filter 27, a check valve 28, an additive gas flow rate regulator (added gas flow rate adjusting means) 24, Is provided.
- the additive gas supply port 23, the pressure gauge 26, the filter 27, the check valve 28, and the additive gas flow rate regulator 24 are arranged in this order from the upstream side of the additive gas pipe 21.
- the mixed gas flow passage 30 includes a mixed gas pipe 31 and a pressure gauge 34.
- the downstream side of the mixed gas flow passage 30 is connected to the mixed gas discharge port 33.
- the upstream side of the mixing unit 32 is connected to the main gas flow passage 10 and the additive gas flow passage 20.
- a downstream side of the mixing unit 32 is connected to the mixed gas flow passage 30.
- the main gas G ⁇ b> 1 flowing in from the main gas flow passage 10 and the additive gas G ⁇ b> 2 flowing in from the additive gas flow passage 20 are mixed in the mixing unit 32.
- the mixed gas G3 is discharged from the mixed gas discharge port 33 via the mixed gas flow passage 30.
- the pilot-type pressure regulating valve 14 is connected to the additive gas flow passage 20 on the pilot side via the flow regulating valve 25A, for example. Then, the pilot pressure adjusting valve 14 adjusts the pressure of the main gas G1 in the main gas flow passage 10 to the same pressure as that of the addition gas G2 based on the pressure of the additive gas G2 in the additive gas flow passage 20. .
- the pressure of the additive gas G2 is preferably set slightly higher than the pressure of the main gas G1.
- the pilot pressure regulator 14 has a characteristic that the gas pressure on the side to be adjusted is slightly lower than the gas pressure on the pilot side. Therefore, in the pilot type pressure regulating valve 14, the pressure of the main gas G1 is adjusted with the pilot side as the additive gas G2.
- the mass flow meter 15 is a member that measures the flow rate of the main gas G ⁇ b> 1 flowing from the main gas flow passage 10 to the mixing unit 32.
- the measured main gas flow rate is transmitted to the flow rate control unit 40 through the communication line 41.
- the flow rate control unit 40 calculates, for example, the flow rate of the additive gas G2 that flows into the mixing unit 32 and outputs a flow rate control signal to the flow rate adjustment valve 24. .
- the additive gas flow rate regulator 24 includes a flow rate measurement unit 24A and a flow rate regulation valve 24B.
- the flow rate adjustment valve 24 ⁇ / b> B is connected to the flow rate control unit 40 through the communication line 42.
- the adjustment flow rate adjusting valve 24 ⁇ / b> B adjusts the flow rate of the additive gas G ⁇ b> 2 flowing from the additive gas flow passage 20 to the mixing unit 32 by adjusting the opening degree of the servo motor by the flow rate control signal from the flow rate control unit 40.
- the main gas G 1 is supplied to the main gas flow passage 10 via the main gas supply port 13
- the additive gas G 2 is supplied to the additive gas flow passage 20 via the additive gas supply port 23.
- the pressure of the main gas G1 in the main gas flow passage 10 is adjusted.
- the mass flow meter 15 disposed in the main gas flow path 10 measures the flow rate of the main gas G1 flowing through the main gas flow path 10.
- the flow rate control unit 40 calculates the flow rate of the additive gas G2 that flows from the additive gas flow passage to the mixing unit 32 based on the flow rate of the main gas G1 measured by the mass flow meter 15. Then, the flow rate control unit 40 calculates the addition amount of the additive gas G2, that is, the flow rate of the additive gas G2, based on the result, and outputs the additive gas flow rate adjustment signal to the flow rate adjustment valve 24B of the additive gas flow rate regulator 24. . (5) The opening degree of the flow rate adjusting valve 24B is adjusted by the additive gas flow rate adjustment signal output from the flow rate control unit 40, and the additive gas G2 flowing from the additive gas flow passage 20 to the mixing unit 32 is adjusted to a predetermined flow rate. . (6) In the mixing unit 32, the main gas G1 and the additive gas G2 are mixed at a predetermined ratio.
- the main gas G1 and the additive gas G2 flow into the mixing unit 32 at a predetermined ratio even if the amount of the mixed gas G3 used is increased or decreased. And the mixed gas with which main gas G1 and additive gas G2 were mixed by the predetermined ratio can be manufactured stably.
- the mixed gas automatically mixed at a predetermined ratio in the gas mixing device 1 without any pressure and flow rate adjustment. Can be supplied.
- the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the invention.
- the main gas G1 is hydrogen and the additive gas G2 is propane gas (hydrocarbon) has been described.
- the composition of the main gas G1 and the additive gas G2 can be arbitrarily selected from nitrogen, an inert gas, etc., in addition to hydrogen and hydrocarbons.
- one or both of the main gas G1 and the additive gas G2 may be a mixed gas having a plurality of compositions.
- the additive gas can be stably mixed with the main gas at a predetermined ratio.
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Abstract
Description
本願は、2011年12月6日に、日本に出願された特願2011-266854号に基づき優先権を主張し、その内容をここに援用する。
このように、二種類のガスを混合して混合ガスが生成される場合、従来、各々のガスの圧力を同圧にするための圧力調整器と、流量を調整により各ガスを所定比率とするための流量調整弁と、を用いた混合装置が知られている。
図1は、本発明の一実施形態に係るガス混合装置の概略を示す図である。
ガス混合装置1は、メインガス流通路10と、添加ガス流通路20と、混合ガス流通路30と、混合部32と、流量制御部40とを備える。メインガス流通路10に供給されたメインガスG1と添加ガス流通路20に供給された添加ガスG2とが、混合部32で混合されて混合ガスG3が生成される。混合ガスG3が混合ガス流通路30を通じて混合ガス排出口33から排出される。
混合部32の上流側がメインガス流通路10と添加ガス流通路20とに接続される。混合部32の下流側が混合ガス流通路30に接続される。メインガス流通路10から流入したメインガスG1と、添加ガス流通路20から流入した添加ガスG2とが混合部32で混合される。混合された混合ガスG3が混合ガス流通路30を経由して混合ガス排出口33から排出される。
(1)まず、メインガスG1がメインガス供給口13経由でメインガス流通路10に供給されるとともに、添加ガスG2が添加ガス供給口23経由で添加ガス流通路20に供給される。
(2)添加ガス流通路20に供給された添加ガスG2の圧力に基づいて、メインガス流通路10内のメインガスG1の圧力が調整される。
(3)メインガス流通路10に配置されたマスフローメータ15により、メインガス流通路10を流れるメインガスG1の流量が計測される。
(4)流量制御部40は、マスフローメータ15により計測されたメインガスG1の流量に基づいて、添加ガス流通路から混合部32に流通させる添加ガスG2の流量を算出する。そして、流量制御部40は、その結果に基づいて添加ガスG2の添加量、すなわち添加ガスG2の流量を算出し、添加ガス流量調整器24の流量調整弁24Bに添加ガス流量調整信号を出力する。
(5)流量制御部40から出力された添加ガス流量調整信号により流量調整弁24Bの開度が調整され、添加ガス流通路20から混合部32に流通する添加ガスG2が所定流量に調整される。
(6)混合部32において、メインガスG1と添加ガスG2とが所定比率で混合される。
例えば、上記実施の形態においては、メインガスG1が水素とされ、添加ガスG2がプロパンガス(炭化水素)である場合について説明した。しかし、メインガスG1、添加ガスG2の組成については、水素、炭化水素の他、窒素、不活性ガス等から任意に選択することができる。また、メインガスG1、添加ガスG2のうち、いずれか一方又は双方が複数の組成による混合ガスでもよい。
10 メインガス流通路
20 添加ガス流通路
14 パイロット式圧力調整弁(パイロット式圧力調整部)
15 マスフローメータ(メインガス流量検出手段)
24 添加ガス流量調整器(添加ガス流量調整手段)
32 混合部
33 混合ガス排出口
40 流量制御部
Claims (2)
- メインガスと添加ガスとを混合して混合ガスを生成するガス混合装置であって、
メインガスが供給されるメインガス流通路と、
添加ガスが供給される添加ガス流通路と、
前記メインガス流通路と前記添加ガス流通路とが接続されて、メインガスと添加ガスとが混合されるとともに生成された混合ガスを混合ガス排出口に排出する混合部と、
流量制御部と、を備え、
前記メインガス流通路には、前記添加ガス流通路内の添加ガスの圧力に基づき前記メインガス流通路内のメインガスの圧力を調整するパイロット式圧力調整部と、前記メインガス流通路内の圧力調整されたメインガスの流量を検出するメインガス流量検出手段と、が設けられ、
前記添加ガス流通路には、前記添加ガス流通路から前記混合部に流通する添加ガスの流量を調整する添加ガス流量調整手段が設けられ、
前記流量制御部は、
前記メインガス流量検出手段が検出したメインガスの流量に基づいて、前記混合部に流通させる添加ガスの流量を、前記添加ガス流量調整手段により制御するガス混合装置。 - メインガスと添加ガスとを混合して混合ガスを生成する混合ガス製造方法であって、
メインガス流通路にメインガスを供給するとともに、添加ガス流通路に添加ガスを供給し、
前記添加ガス流通路内を流通する添加ガスの圧力に基づいて前記メインガス流通路を流通するメインガスの圧力を調整し、
前記メインガス流通路内において圧力調整されたメインガスの流量に基づいて前記添加ガス流通路から前記混合部に流通する添加ガスの流量を調整し、
前記混合部においてメインガスと添加ガスとを所定比率で混合する混合ガス製造方法。
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KR1020147015939A KR101607863B1 (ko) | 2011-12-06 | 2012-11-20 | 혼합가스 제조 방법 및 가스 혼합 장치 |
US14/362,909 US9486749B2 (en) | 2011-12-06 | 2012-11-20 | Method for producing mixed gas and gas mixing device |
CN201280059764.7A CN103974760B (zh) | 2011-12-06 | 2012-11-20 | 混合气体制作方法以及气体混合装置 |
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JP2011266854A JP5557827B2 (ja) | 2011-12-06 | 2011-12-06 | 混合ガス製造方法及びガス混合装置 |
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JP (1) | JP5557827B2 (ja) |
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WO2015112087A1 (en) * | 2014-01-27 | 2015-07-30 | Singapore Oxygen Air Liquide Private Limited | Method and system for blending gas streams |
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JP7200166B2 (ja) * | 2020-04-03 | 2023-01-06 | 大陽日酸株式会社 | 混合ガス供給装置及び方法 |
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WO2015112087A1 (en) * | 2014-01-27 | 2015-07-30 | Singapore Oxygen Air Liquide Private Limited | Method and system for blending gas streams |
CN103861489A (zh) * | 2014-03-27 | 2014-06-18 | 上海海事大学 | 内燃机配气***气体混合***及气体混合方法 |
CN103861489B (zh) * | 2014-03-27 | 2016-01-20 | 上海海事大学 | 内燃机配气***气体混合***及气体混合方法 |
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JP5557827B2 (ja) | 2014-07-23 |
US9486749B2 (en) | 2016-11-08 |
US20140334246A1 (en) | 2014-11-13 |
KR20140093270A (ko) | 2014-07-25 |
KR101607863B1 (ko) | 2016-03-31 |
CN103974760B (zh) | 2016-02-24 |
JP2013119045A (ja) | 2013-06-17 |
CN103974760A (zh) | 2014-08-06 |
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